Add missing dispatch-workflow to safe output documentation

[Copilot]

The dispatch-workflow safe output type was implemented but missing from workflow instruction files.

Changes

Updated safe output type lists

• .github/aw/create-agentic-workflow.md - Added dispatch-workflow to safe-outputs examples
• .github/aw/create-shared-agentic-workflow.md - Added to common safe outputs list

Added documentation

• .github/aw/github-agentic-workflows.md - Full configuration reference:

safe-outputs:
  dispatch-workflow:
    workflows: [workflow-name]          # Required: list of workflow names to allow
    max: 3                              # Optional: max dispatches (default: 1, max: 3)

Triggers other agentic workflows in the same repository using workflow_dispatch. Agent output includes workflow_name (without .md extension) and optional inputs (key-value pairs). Same-repo only.

Original prompt

Update GitHub actions workflows .md instructions with the latest list of safe outout types. In particular, dispatch_workflow

---

💬 We'd love your input! Share your thoughts on Copilot coding agent in our 2 minute survey.